基于逆磁致伸缩效应的超磁致伸缩磁力控制器件建模  

Modeling of a Giant Magnetostrictive Device for Magnetic Force Control Based on Inverse Magnetostrictive Effect

作　　者：郑加驹[1] 王洪礼[1] 曹淑瑛[2] 

机构地区：[1]天津大学机械工程学院,天津300072 [2]河北工业大学电气工程与自动化学院,天津300130

出　　处：《机械工程学报》2008年第5期51-56,共6页Journal of Mechanical Engineering

基　　金：国家自然科学基金(10732020)。

摘　　要：超磁致伸缩器件的输入应力与输出磁通密度存在着滞回非线性。基于Jiles-Atherton模型、磁机械效应方法定律和磁路定律,建立一个超磁致伸缩磁力控制器件的滞回模型。试验结果表明,该模型能较好地描述在变化应力和恒定偏置磁场作用下,超磁致伸缩器件输入应力与输出磁通密度及磁力的滞回关系,并可以预测偏置磁场对器件输出性能的影响,从而对器件的设计与分析具有重要指导意义。The relationship between the input stress and the output flux density of the giant magnetostrictive devices exhibits hys- teretic nonlinearity. A hysteretic model of a giant magnetostrictive device for magnetic force control is established based on the Jiles-Atherton model, the law of approach for the magnetomechanical effect and the magnetic circuit law. Experimental results show that the proposed model can better describe the hysteretic relationship among the input stress, the output flux density and magnetic force for the device under varying stress and constant bias magnetic field. The model can also predict the effect of the bias magnetic field on the output performance of the device. Therefore, the proposed model has important guiding significance for design and analysis of the devices.

关 键 词：超磁致伸缩器件 滞回 Jiles-Atherton模型 方法定律 逆磁致伸缩效应 

分 类 号：TP211.53[自动化与计算机技术—检测技术与自动化装置]